Invention Grant
US08823247B2 Piezoelectric vibrating devices including respective packages in which castellations include respective connecting electrodes
有权
压电振动装置,其包括相应的封装,其中cast ations包括相应的连接电极
- Patent Title: Piezoelectric vibrating devices including respective packages in which castellations include respective connecting electrodes
- Patent Title (中): 压电振动装置,其包括相应的封装,其中cast ations包括相应的连接电极
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Application No.: US13212030Application Date: 2011-08-17
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Publication No.: US08823247B2Publication Date: 2014-09-02
- Inventor: Ryoichi Ichikawa , Yoshiaki Amano
- Applicant: Ryoichi Ichikawa , Yoshiaki Amano
- Applicant Address: JP Tokyo
- Assignee: Nihon Dempa Kogyo Co., Ltd.
- Current Assignee: Nihon Dempa Kogyo Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Klarquist Sparkman, LLP
- Priority: JP2010-184612 20100820
- Main IPC: H01L41/08
- IPC: H01L41/08 ; H03H3/02 ; H03H9/10

Abstract:
Piezoelectric vibrating devices are disclosed that lack base through-holes and that can be manufactured on a wafer scale. Also disclosed are methods for making same. An exemplary piezoelectric device has a package base having first and second opposing main surfaces. On the second (outer) first main surface is formed a pair of external electrodes. The first (inner) main surface defines a first recess and a peripheral first bonding surface. A pair of connecting electrodes are provided for connecting to the respective external electrodes via respective edge surfaces of the package base that extend between the first and second main surfaces. A piezoelectric vibrating piece is mounted in and contained within the package base. The vibrating piece includes a pair of excitation electrodes electrically connected to respective connecting electrodes. A package lid comprises first and second main surfaces, of which the second (inner) main surface defines a second recess that is larger than the first recess. The second main surface also defines a second bonding surface that peripherally surrounds the second recess. A sealing material is applied, over the width of the second bonding surface, circumferentially between the first bonding surface and the second bonding surface.
Public/Granted literature
- US20120043860A1 PIEZOELECTRIC VIBRATING DEVICES AND METHODS FOR MANUFACTURING SAME Public/Granted day:2012-02-23
Information query
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